[C320-list] 1995 C320 Aqua Lift Muffler & Elbow

[Pat Moriarty]

Catalina, but I had the original drawing and the replacement was 
about 95% correct. They want you to send in your old one and they 
will make to match which is critical on the input and output. I live 
in Texas and we do not have an off season so I just went with the 
drawing and my new one doesn't really lay on the sole but I don't 
care since I put a urethane pad under it so there is no rattle or 
hum.  I am betting there is less stress on the whole thing not being 
screwed down and then having the engine tug on it with the very short 
stiff exhaust hose.

At 09:50 AM 12/3/2009, you wrote:

>PAT
>
>Where did you get your new one.
>
>Tony
>
>
>
>-----Original Message-----
>From: Pat Moriarty <patm at psiurethanes.com>
>To: C320-List at Catalina320.com
>Sent: Thu, Dec 3, 2009 8:28 am
>Subject: Re: [C320-list] 1995 C320 Aqua Lift Muffler & Elbow
>
>
>I did basically the same thing on 1994 boat. I think the bottom 
>flexed too much with exhaust pressure and caused the seam failure. 
>Repaired several times and finally got a new one.
>
>Pat #130
>
>At 09:12 PM 12/2/2009, you wrote:
> >Rollie:
> >
> >The muffler was designed to be held down on only three corners. I would
> >not suggest your modifying it! Our 1994, #150 started leaking at the
> >bottom seam about 6 years ago. I had it repaired twice by a fiberglass
> >shop and I did a repair once myself. I think part of the problem is that
> >vibration between the engine and the fixed muffler is what caused the
> >seperations. I think by your tightening the screws, you might be adding
> >to the problem. On the replacement muffler, I did not attach it to the
> >platform it sits on. The two hoses attached to it hold it in place. I
> >placed a thin foam pad underneath the muffler to avoid abrasion/chaffing
> >of the muffler or platform.
> >
> >The hose you describe with the 3" bulb in it I think is designed to
> >absorbe some of the vibrations. I had looked at them when I made the
> >replacement, but decided to leave the muffler "float" to avoid putting
> >stress on the muffler. I believe it was referred to as a Hump Hose.
> >
> >Dave Gleason
> >Proud Mary, #150
> >
> >
> >On Wed, 2 Dec 2009 22:47:58 +0000 (UTC) argates2nd at comcast.net writes:
> > >
> > > Our 1995 model #182 has only 3 screws holding down the aqua lift
> > > muffler? The aft port corner has no hole and no screw. Is that
> > > normal?
> > >
> > > Should I try to add a screw to that corner by drilling a hole and
> > > self threading with the screw?
> > >
> > > I may have some leaking from that corner, although the other 3
> > > screws were not very tight and I tightened them today but did not
> > > run the engine afterwards.
> > >
> > >
> > > Our Perkins does not seem to have an exhaust elbow like those
> > > described in recent e-mails? The closest thing to it is a 9 inch
> > > pipe with a 3" bulb in the center where a 60 degree downward curve
> > > exists coming off the aft end of the engine, labeled "exhaust
> > > outlet" in the Perkins manual, which clamps to the reinforced hose
> > > before the muffler.
> > >
> > > Is that the elbow that should be removed from the back of the engine
> > > and checked for carbon build up & deterioration?
> > >
> > > Our Perkins engine has 570 hours.
> > >
> > > Thanks, Rollie Punta Gorda, FL
> > >
> >
> >____________________________________________________________
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> wAAJ1BDY27WE-_hJ6PiyojBOv0KAAYAAAAAAAAAAAAAAAAAAADNAAAAAAAAAAAAAAAAAAATRAAAAAA= 
>
>
>Pat Moriarty
>PSI Urethanes Inc
>PH: 800-888-5156 Fax: 512-837-8733
>Please visit our web site at
>www.psiurethanes.com
>

Pat Moriarty
PSI Urethanes Inc
PH: 800-888-5156  Fax: 512-837-8733
Please visit our web site at
www.psiurethanes.com